Boeings Phantom Eye Flies Again

See Boeing s Phantom Eye, the liquidhydrogen powered unmanned airborne system, take to the skies for its second flight at NASA s Dryden Flight Research Center at Edwards Air Force Base, Calif. The flight, which took place on Feb. 25, lasted 66 minutes, reaching an altitude of more than 8, 000 feet and a speed of 62 knots. Learn more at and see a more indepth video at